Suspension-type chimney brush



July 8, 1952 w. J. AHo V 2,602,177

SUSPENSION-TYPE CHIMNEY BRUSH Filed March 5, 1947 IN VENTOR.

.o WiZZamJ'olznAzo Patentedl July 8, 1952 UNITED STATES PATENT OFFICE SUSPENSION-TYPE CHIMNEY BRUSH William J. Aho, Garson Mine, Ontario, Canada Application March 5, 1947, Serial No. 732,528

1 Claim.

This invention relates to improvements in brushes, and more particularly to the provision of a novel brush for sweeping chimneys.

It is an object of the invention to provide a brush by means of which the operation of sweeping a chimney is greatly facilitated and expedited.

A further object is to provide a chimney sweep ing brush which is simple structure, inexpensive to manufacture and has few parts to get out of order.

A further object is to provide a chimney sweeping brush which can be easily lowered into chimney, and easily opened and spread when it has been lowered to a desired position.

These and other objects are attained by the novel construction and arrangement of parts hereinafter described and illustrated by the accompanying drawings, forming a part hereof, and in which:

Fig. 1 is a sectional view of the brush when in a contracted condition on line I-I of Fig. 2.

Fig. 2 is a bottom plan View of the brush taken on the line 2--2 of Fig. 1.

Fig. 3 is a sectional view of the brush in an expanded condition.

Fig. 4 is a plan view of a hinge used in the brush.

Fig. 5 shows plan and side view of pin slides used in the device.

Fig. 6 are plan and side views of other pin slides used in the device.

Referring to the drawings'the device is shown to comprise four blocks I, 2,3, 4, from which project metal bristles 5, the blocks being spaced and at its upper end each block has a hinge plate I connected to a common central plate 6, having a center hole 8 in which is positioned a bushing 9 through which passes a pin II). threadedly connected to the upper end of the pin III, and a ring I2 is connected to the cap, the ring I2 being adapted to receive a rope.

Encircling the pin I is a spring I3 which .bears against a pin or disc I4 xed to the lower end of the pin Ill, the upper end of the spring I3 abutting the bushing 9, and the lower end I of the pin is pointed.

On the inner side of block I is a pin slide Il having a slot I6, and a ange I8 by means of which the slide is attached to the block. On the opposite block 2 is a similar pin slide 2D having a slot I9 and a fiange 2| for attaching the slide to the block. The two slides are positioned one above the other and adapted to have the pin y pass through the slots thereof.

Acap II is` 2 portion of blocks 3 and 4 is a leaf spring 23. The upper and lower ends of the blocks are arced at 24 and 25 to enable the brush to be easily lowered and withdrawn.

In operation, the pin I0 is inserted through the slots I6 and I9 to hold the blocks together as shown in Fig. 1. The brush is lowered into the chimney as far as desired, and the rope is jerked to remove the pin I0, allowing the springs 22 and 23 to expand the brush by spreading the blocks apart as shown in Fig. 2. The chimney sweeping operations can then be effectively and easily performed by drawing the brush up out of the chimney.

The device is simple in structure, inexpensive, and obviously facilitates the cleaning of chimneys.

The above description is to be considered as illustrative and not limitative of the invention of which modifications can be made without departing from the spirit and scope as set forth in the appended claim.

The invention having been described, what is claimed is:

A brush for sweeping chimneys, comprising a plurality of blocks having bristles thereon, said blocks being spaced and having hinge members attached thereto, a plate connected to the hinge members and having a central hole, a bushing passing through the hole,v a pin passing through the bushing and having a disc fixed to the end thereof extending between the blocks, a coiled spring encircling the pin and abutting the bushing and disc, a pin slides having anges thereon that are secured to the inner sides of the opposite blocks, and said pin slides having slots therein to receive the pin, a leaf spring connected to the opposite blocks at the ends opposite to the hinge members to force said blocks outwardly of each other, said pin being adapted to retain the blocks lin compressed positionwhen in the slots in said slides and to permit action of the leaf springs when removed from said slides.

WILLIAM J. AHO.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,926,753 Rickabaugh Sept. 12, 1933 2,208,901 Hawkinson July 23, 1940 2,420,260 Myszkowski May 6, 1947 FOREIGN PATENTS Number Countryv y Date 11,667 Great Britain of 1847 

